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arXiv 1105.0385hep-lathep-phhep-th
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具有手征化学势的格点量子色动力学中的手征磁效应

Chiral magnetic effect in lattice QCD with a chiral chemical potential

Arata Yamamoto

摘要:

我们进行了第一次包含手性化学势的双味动力学费米子的格点量子色动力学模拟。由于手征化学势不存在符号问题,因此我们可以用蒙特卡罗模拟来精确地分析手征非平衡QCD物质。通过对该系统施加外磁场,我们得到了沿磁场的有限感应电流,这对应于手征磁效应。所获得的感应电流与磁场和手性化学势成比例,这与分析预测一致。

英文摘要:

We perform a first lattice QCD simulation including two-flavor dynamical fermion with a chiral chemical potential. Because the chiral chemical potential gives rise to no sign problem, we can exactly analyze a chirally imbalanced QCD matter by the Monte Carlo simulation. By applying an external magnetic field to this system, we obtain a finite induced current along the magnetic field, which corresponds to the chiral magnetic effect. The obtained induced current is proportional to the magnetic field and to the chiral chemical potential, which is consistent with an analytical prediction.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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